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7161450 |
Microwave transmission line having dielectric film layers providing negative space charge effects
A microwave transmission line includes a substrate of high-resistivity silicon, a first dielectric film and a second dielectric film successively formed on the principal surface of the substrate...
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7154355 |
Transmission line with a transforming impedance and solder lands
A transmission line for high-frequency differential signals and having a transforming impedance is formed into a substrate. The transmission line is comprised of a slot, the opposing surfaces of...
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7154353 |
Microstrip lines in a multi-layered shielded configuration
A plurality of signal lines are provided on one main surface of a dielectric substrate. A plurality of other signal lines are provided on the other main surface of dielectric substrate. The...
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7151420 |
Electromagnetically shielded slot transmission line
An electro-magnetically shielded slot-transmission line is formed by metallizing the opposing sides of a slot cut through a dielectric substrate. A ground plane is deposited on the bottom of the...
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7106151 |
RF/microwave stripline structures and method for fabricating same
An improved RF/microwave stripline structure fabricated from a PWB suspended inside of a sheet metal enclosure. The enclosure is formed by top and bottom sheet metal covers each having a plurality...
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7102456 |
Transmission line
A method of controlling a characteristic impedance of a transmission line, and a transmission line implementing the method. According to a basic version of the invention a distance between...
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7088204 |
Transmission line and semiconductor integrated circuit device
The transmission line is provided with a signal strip, a resistive layer opposed to the signal strip across a dielectric layer, and a ground conductor electrically connected to the resistive layer,...
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7080186 |
Electromagnetically-coupled bus system
The present invention provides a mechanism for supporting high digital bandwidth in a multi-drop bus system. A first device of the system is electrically coupled to a bus. Multiple receiving...
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7075387 |
Directional coupler, antenna interface unit and radio base station having an antenna interface unit
A directional coupler for radio frequency application, comprising: an input ( 110 ) for receiving a radio frequency input signal; a port ( 120 ) for delivering a radio frequency output signal; a...
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7064627 |
Signal transmission structure having a non-reference region for matching to a conductive ball attached to the signal transmission structure
A signal transmission structure is provided. The structure comprises a reference plane, a bonding pad, a conductive trace and a conductive ball. By changing the shapes of the reference plane and...
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7061347 |
High frequency substrate comprised of dielectric layers of different dielectric coefficients
A high frequency substrate includes a first metal layer, a first dielectric layer, a second metal layer, a second dielectric layer and a high-frequency signal transmission line. The first...
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7061342 |
Differential transmission channel link for delivering high frequency signals and power
An engineered transmission line for transmitting high-frequency data signals between two points of connection includes a dielectric body and a plurality of conductive elements disposed thereon,...
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7053735 |
Waveguide in multilayer structures and resonator formed therefrom
The idea of the invention is to fabricate a multilayer coaxial transmission line into a printed circuit. The outermost conductor is fabricated by conductive strips in different layers, using...
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7034640 |
Suspended and truncated co-planar waveguide
A suspended and truncated co-planar waveguide is described. The waveguide has a substrate with a substantially flat top surface and two lateral faces. A signal conductor and two ground conductors...
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7030712 |
Radio frequency (RF) circuit board topology
An interconnection structure for interconnecting circuitry on a first conductive layer to circuitry on a second conductive layer is provided. The interconnection structure of the present invention...
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7026886 |
Miniaturized microwave integrated circuit using complementary conducting surfaces
The invention discloses a two-dimensional array waveguide structure implemented with multi-layer process or monolithic integrated circuit process. The structure includes a first metal layer, a...
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7023295 |
Transmission line having photonic band gap coplanar waveguide structure and method for fabricating power divider using the same
A photonic band gap coplanar waveguide transmission line and a method for fabricating a power divider using the same capable of increasing a characteristic impedance, increasing a signal line width...
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7009467 |
Directional coupler
A multilayer coupled-lines directional coupler of the quarter wavelength type comprises a first, a second and a third conductive layer, joined by means of dielectric layers. The first conductive...
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7002433 |
Microwave coupler
A high power, TEM mode directional microwave coupler having low loss and expanded bandwidth uses novel thick suspended substrate conductors to provide multi-octave bandwidth performance in a...
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6998944 |
Method and apparatus for microwave interconnection
Microwave signals are coupled from a microwave module to a microstrip transmission line, each installed on a chassis plate. The microwave signals are fed through the bottom or side of the microwave...
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6985055 |
Transmission line comprised of interconnected parallel line segments
A transmission line, includes: a first input electrode located in a first level; a plurality of parallel stripe-shaped signal lines in the first level, one end of the signal lines connected to the...
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6985056 |
High-frequency circuit and high-frequency package
A high-frequency circuit formed on a surface of a dielectric substrate includes: a signal strip formed on a first face of the dielectric substrate for transmitting a signal therethrough; a pair of...
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6980063 |
Transmission line parasitic element discontinuity cancellation
A discontinuity, such as a via, in a signal transmission line can introduce a parasitic element that affects the signal transmission. The method in accordance with embodiments of the present...
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6975189 |
On-chip multilayer metal shielded transmission line
Multi-layer metal-shielded monolithic transmission lines are formed in side-by-side arrangement by depositing parallel planar thin film, conductive layers, separated by nonconductive separator...
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6972647 |
Embedded shielded stripline (ESS) structure using air channels within the ESS structure
A technique for facilitating signal transmission at high signal frequencies in a multi-layer substrate is disclosed. In one embodiment a multi-layer substrate comprises a conductor or pair of...
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6961494 |
Optical waveguide device
The attenuation from connectors to the interaction region of the light signal with the microwave can be reduced, and the bandwidth can be improved in an optical waveguide device, in which a space...
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6956449 |
Quadrature hybrid low loss directional coupler
A coupling device defined by an RF circuit board having a cavity formed therein and a plurality of conductive traces and a ground plane, a coupler board having opposites sides and conductive...
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6946926 |
Wired transmission path with plural equidistant differential conductors
A wired transmission path includes first and second differential transmission paths. The first differential transmission path is composed of two strip lines, and the second differential...
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6940372 |
Transmission line, resonator, filter, duplexer, and communication apparatus
A transmission line, a resonator, a filter, a duplexer, and a communication apparatus efficiently minimize power losses due to edge effects, thereby having superior loss-reduction characteristics....
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6938331 |
Method for fabricating a filament affixed trace within an electronic device
A method for fabricating a filament-affixed trace within an electronic device, such as a circuit board or microelectronic device. Conductive traces are affixed to the surface of a composite...
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6917265 |
Microwave frequency surface mount components and methods of forming same
A microwave frequency device includes: a first substrate having a dielectric layer and a conductive film disposed on opposing first and second sides of the dielectric layer, the conductive film on...
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6914502 |
Wiring structure for transmission line having grooved conductors
A wiring structure for a transmission line has a ground line ( 2 ) and a signal line ( 1 ). The signal line ( 1 ) is disposed so as to face the ground line ( 2 ) through a dielectric ( 3 ). A...
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6900390 |
Flexible microstrip signal and power bus cable
A multi-layered, flat, flexible cable capable of transmitting both power and multiple control signals to the components of a network is disclosed. The cable provides all connections on its top...
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6894581 |
Monolithic nonlinear transmission lines and sampling circuits with reduced shock-wave-to-surface-wave coupling
A monolithic non-linear transmission line and sampling circuit with reduced shock-wave-to-surface-wave coupling are presented herein. In coplanar-waveguide (CPW) technology, this reduced coupling...
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6888427 |
Flex-circuit-based high speed transmission line
A transmission line circuit is described which includes a conductive plane, a plurality of signal traces, and an intermediate layer between the conductive plane and the signal traces. The...
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6885549 |
System and method for flexible circuits
A flexible printed circuit improves data transfer rates by disposing ground wires in a ground plane proximate to signal wires disposed in a signal channel plane. One or more ground wires is...
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6876279 |
Voltage tunable laminated dielectric materials for a coplanor waveguide
A tunable dielectric structure includes a first layer of dielectric material, a second layer of dielectric material positioned adjacent to the first layer of dielectric material, with the second...
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6867668 |
High frequency signal transmission from the surface of a circuit substrate to a flexible interconnect cable
A high speed flexible interconnect cable includes a number of conductive layers and a number of dielectric layers. Conductive signal traces, located on the conductive layers, combine with the...
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6864757 |
Tunable microwave devices with auto-adjusting matching circuit
An impedance matching circuit includes a conductor line having an input port and an output port, a ground conductor, a tunable dielectric material positioned between a first section of the...
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6847274 |
Multilayer coaxial structures and resonator formed therefrom
The idea of the invention is to fabricate a multilayer coaxial transmission line into a printed circuit. The outermost conductor is fabricated by conductive conduit strips in different layers,...
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6825743 |
Substrate enhancement for improved signal characteristics on a discontinuous transmission line
A circuit for processing radio frequency signals. The circuit can include a substrate board that has at least one dielectric layer ( 100 ) having a first set of substrate properties over a first...
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6822532 |
Suspended-stripline hybrid coupler
A suspended stripline device and method for manufacturing thereof. The device includes first and second conductive traces disposed on a dielectric substrate, each of the first and second conductive...
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6809617 |
Edge plated transmission line and switch integrally formed therewith
Coplanar waveguides have a center signal line and a pair of ground lines on either side formed of a sputtered material such as gold (Au). Such waveguides are subject to what is known as the edge...
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6809608 |
Transmission line structure with an air dielectric
The dielectric constant and loss tangent of a transmission structure is lowered by sandwiching a conductor between two dielectric structures one or both of which have a series of openings. The...
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6798320 |
Microstrip line having a line electrode with integral edge electrodes
A microstrip line includes a strip conductor, a line electrode, and edge electrodes provided at the edges on both sides of the line electrode. The construction of the microstrip line greatly...
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6768400 |
Microstrip line having a linear conductor layer with wider and narrower portions
A microstrip line includes a ground conductor layer, a dielectric layer formed on the ground conductor layer, and a linear conductor layer formed on the dielectric layer to have a linear...
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6759923 |
Device for directing energy, and a method of making same
A hybrid coupler ( 10, 90, 110, 130, 160, 210 ) includes a substrate ( 12 ) having a coupling structure formed thereon using thick film processing techniques. The coupling structure includes two...
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6756860 |
Dual band coupler
Disclosed is a dual band coupler, in which a dielectric layer having a coupling signal line is positioned between dielectric layers having a first main signal line and a second main signal line....
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6714104 |
Inverted microtrip transmission line integrated in a multilayer structure
The invention relates to a transmission cable realized by multilayer technique, where the signal cable ( 20 ) is set at a desired distance from the wall of the cavity constructed for said...
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6714095 |
Tapered constant “R” network for use in distributed amplifiers
A constant “R” network distributed amplifier formed in a multi-layer, low temperature co fired ceramic structure comprises multiple cascaded constant “R” networks for amplifying a signal...
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